Polymethyl methacrylate (PMMA) is known as ____________________?
Polymethyl methacrylate (PMMA) is known as ____________________?
A. Bakelite
B. Teflon
C. Perspex
D. Nylon-6
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Nylon-6 as compared to Nylon-66 is having higher___________________?
Nylon-6 as compared to Nylon-66 is having higher___________________?A. Hardness
B. Abrasion/resistance
C. Melting point
D. None of theseDDT should not be allowed to come in contact with iron (during its manufacture) to
Question: DDT should not be allowed to come in contact with iron (during its manufacture) to
[A].avoid its decomposition. [B].
prevent sulphonation of the monochlorobenzene by the acid catalyst. [C].
achieve non-hygroscopic property. [D].
none of these. Answer: Option A
Explanation:
No answer description available for this question.
Adipic acid is an intermediate in the manufacture of
Question: Adipic acid is an intermediate in the manufacture of
[A].perspex [B].
nylon-66 [C].
polystyrene [D].
bakelite Answer: Option B
Explanation:
No answer description available for this question.
Catalyst used in the oxidation of benzene to produce Maleic anhydride is ______________________?
Catalyst used in the oxidation of benzene to produce Maleic anhydride is ______________________?A. V2O5
B. Pt
C. Ni
D. CrHard water____________________?
Hard water____________________?A. Does not affect the lather formation by soap
B. Is not unfit for drinking purpose
C. Pollutes the water stream
D. All A, B. and CDechlorination of treated water is necessary to __________________?
Dechlorination of treated water is necessary to __________________?A. Remove residual turbidity
B. Reduce the bacterial load on filter
C. Control taste and odour
D. Remove chlorinous taste